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25 June 2026

Military Reinstates Flu Shot Mandate Amid Growing Outbreak at Lackland Air Force Base

A severe flu outbreak at Lackland Air Force Base has led the military to reverse its recent policy change, making flu shots mandatory again for recruits and certain personnel.

Military Reinstates Flu Shot Mandate Amid Growing Outbreak at Lackland Air Force Base

The U.S. military is grappling with a significant flu outbreak at Lackland Air Force Base in San Antonio, which has prompted a swift reversal of a recent policy change regarding flu vaccinations. This development underscores the challenges of maintaining military readiness in the face of public health threats.

In April, Defense Secretary Pete Hegseth announced that the annual flu shot would become optional for troops, a departure from a longstanding mandate that dated back to 1945. However, the growing outbreak at Lackland Air Force Base has necessitated a swift return to mandatory vaccinations for basic trainees across the ArmyNavy and Air Force.

Rapid Spread of Flu Among Recruits

The flu outbreak at Lackland Air Force Base has been escalating rapidly. As of Wednesday, the number of cumulative cases had reached 275, up from 222 reported just the day before. This marks a sharp increase from the 159 cases and two hospitalizations reported last week. Tragically, the death of one recruit, Keon McDaniel remains under investigation, although it is not yet clear whether it is tied to the outbreak.

The close quarters of basic training, where recruits live, sleep, and train in tight proximity, have exacerbated the spread of the virus. This environment, combined with the physical and mental stress of training, can leave recruits’ immune systems vulnerable to illness.

Policy Reversal and Exceptions

Despite Hegseth’s initial policy change, the military services have been granted exceptions to reinstate flu shot mandates for basic trainees. The Air Force, in particular, has set a goal to vaccinate all recruits in the current class and all new arrivals at the base. Additionally, the Army is preparing to broaden the requirement to include troops deploying overseas, first responders, child care workers, health care personnel, prison staff, and soldiers participating in large-scale training exercises.

This policy reversal highlights the military’s pragmatic approach to public health. While the Pentagon sets overarching policies, individual services and commanders often adjust these directives to address specific safety concerns or bureaucratic challenges.

Criticism and Political Fallout

The outbreak and subsequent policy reversal have drawn criticism from some U.S. officials. Representative Joaquin Castro whose district includes Lackland Air Force Base, has been vocal in his disapproval of Hegseth’s initial decision to make flu shots optional. Castro has called for answers and accountability, emphasizing the potential risks to military readiness and troop safety.

As the situation continues to evolve, the military’s response to the flu outbreak at Lackland Air Force Base serves as a stark reminder of the importance of public health measures in maintaining the health and readiness of the nation’s armed forces.

Author

Olivia Carter

Olivia Carter writes about beauty without the hype: actual ingredients, real prices, and the gap between marketing and results. Based between London and New York.